JP6107842B2 - 熱交換器 - Google Patents
熱交換器 Download PDFInfo
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- JP6107842B2 JP6107842B2 JP2015008124A JP2015008124A JP6107842B2 JP 6107842 B2 JP6107842 B2 JP 6107842B2 JP 2015008124 A JP2015008124 A JP 2015008124A JP 2015008124 A JP2015008124 A JP 2015008124A JP 6107842 B2 JP6107842 B2 JP 6107842B2
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- heat exchanger
- refrigerant
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- main body
- aluminum
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- 239000000463 material Substances 0.000 claims description 38
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 36
- 229910052782 aluminium Inorganic materials 0.000 claims description 36
- 229910000838 Al alloy Inorganic materials 0.000 claims description 34
- 238000005219 brazing Methods 0.000 claims description 31
- 238000004891 communication Methods 0.000 claims description 28
- 239000003507 refrigerant Substances 0.000 description 118
- 238000012546 transfer Methods 0.000 description 22
- 238000004378 air conditioning Methods 0.000 description 20
- 239000007788 liquid Substances 0.000 description 14
- 230000007797 corrosion Effects 0.000 description 11
- 238000005260 corrosion Methods 0.000 description 11
- 238000002844 melting Methods 0.000 description 8
- 230000008018 melting Effects 0.000 description 8
- 238000005452 bending Methods 0.000 description 7
- 238000005192 partition Methods 0.000 description 7
- 238000001816 cooling Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 239000012071 phase Substances 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005253 cladding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 238000004781 supercooling Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
- F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
- F28D1/05375—Assemblies of conduits connected to common headers, e.g. core type radiators with particular pattern of flow, e.g. change of flow direction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P21/00—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2/00—Friction-grip releasable fastenings
- F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
- F16B2/06—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action
- F16B2/08—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action using bands
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
- F28D1/0471—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits having a non-circular cross-section
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
- F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
- F28F1/325—Fins with openings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
- F28F19/06—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings of metal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/089—Coatings, claddings or bonding layers made from metals or metal alloys
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
- F28F9/027—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes
- F28F9/0275—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes with multiple branch pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
- F28F9/028—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by using inserts for modifying the pattern of flow inside the header box, e.g. by using flow restrictors or permeable bodies or blocks with channels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
- F25B39/04—Condensers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2215/00—Fins
- F28F2215/12—Fins with U-shaped slots for laterally inserting conduits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
- F28F2250/06—Derivation channels, e.g. bypass
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/04—Fastening; Joining by brazing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/08—Fastening; Joining by clamping or clipping
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/0202—Header boxes having their inner space divided by partitions
- F28F9/0204—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions
- F28F9/0209—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only transversal partitions
- F28F9/0212—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only transversal partitions the partitions being separate elements attached to header boxes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Automatic Assembly (AREA)
- Clamps And Clips (AREA)
- Other Air-Conditioning Systems (AREA)
- Details Of Heat-Exchange And Heat-Transfer (AREA)
Description
図1は、本発明の一実施形態に係る空気調和装置1の構成の概要を示す回路図である。
(2−1)空調室内機3
空調室内機3は、室内の壁面に壁掛け等により、又は、ビル等の室内の天井に埋め込みや吊り下げ等により設置される。空調室内機3は、室内熱交換器4と、室内ファン5とを有している。室内熱交換器4は、例えば伝熱管と多数のフィンとにより構成されたクロスフィン式のフィン・アンド・チューブ型熱交換器であり、冷房運転時には冷媒の蒸発器として機能して室内空気を冷却し、暖房運転時には冷媒の凝縮器として機能して室内空気を加熱する熱交換器である。
空調室外機2は、ビル等の室外に設置されており、冷媒連絡配管6,7を介して空調室内機3に接続される。空調室外機2は、図2および図3に示されているように、略直方体状のユニットケーシング10を有している。
(3−1)冷房運転
冷房運転時は、四路切換弁92が図1の実線で示される状態、すなわち、圧縮機91の吐出側がガス冷媒配管31を介して室外熱交換器20のガス側に接続され、かつ、圧縮機91の吸入側がアキュムレータ93、冷媒連絡配管7を介して室内熱交換器4のガス側に対して接続された状態となっている。膨張弁33は、室内熱交換器4の出口(すなわち、室内熱交換器4のガス側)における冷媒の過熱度が一定になるように開度調節されるようになっている(過熱度制御)。この冷媒回路の状態で、圧縮機91、室外ファン95および室内ファン5を運転すると、低圧のガス冷媒は、圧縮機91で圧縮されることで高圧のガス冷媒となる。この高圧のガス冷媒は、四路切換弁92を経由して室外熱交換器20に送られる。その後、高圧のガス冷媒は、室外熱交換器20において、室外ファン95によって供給される室外空気と熱交換を行って凝縮して高圧の液冷媒となる。そして、過冷却状態になった高圧の液冷媒は、室外熱交換器20から膨張弁33に送られる。膨張弁33によって圧縮機91の吸入圧力近くまで減圧されて低圧の気液二相状態となった冷媒は、室内熱交換器4に送られ、室内熱交換器4において室内空気と熱交換を行って蒸発して低圧のガス冷媒となる。
暖房運転時は、四路切換弁92が図1の破線で示される状態、すなわち、圧縮機91の吐出側が冷媒連絡配管7を介して室内熱交換器4のガス側に接続され、かつ、圧縮機91の吸入側がガス冷媒配管31を介して室外熱交換器20のガス側に接続された状態となっている。膨張弁33は、室内熱交換器4の出口における冷媒の過冷却度が過冷却度目標値で一定になるように開度調節されるようになっている(過冷却度制御)。この冷媒回路の状態で、圧縮機91、室外ファン95および室内ファン5を運転すると、低圧のガス冷媒は、圧縮機91に吸入されて圧縮されて高圧のガス冷媒となり、四路切換弁92、および、冷媒連絡配管7を経由して、空調室内機3に送られる。
(4−1)室外熱交換器20の全体構成
図4に、室外熱交換器20の概略外観斜視図を示す。また、図5に、伝熱フィン21aの扁平多穴管21bに対する取付状態を示す。
熱交換部21は、多数の伝熱フィン21aと多数の扁平多穴管21bとで構成されている。伝熱フィン21aおよび扁平多穴管21bは、いずれもアルミニウム製もしくはアルミニウム合金製である。
分流器22は、液冷媒配管32と出入口ヘッダ管26の下方部分とを連結させるように接続されている。この分流器22は、例えば、室外熱交換器20が冷媒の蒸発器として機能する際には、液冷媒配管32から流れてきた冷媒を高さ方向に分流させ、分流器22で分流された各冷媒流れは、出入口ヘッダ管26の下方部分の各高さ位置を介して、風上側熱交換部20aの下方部分に導かれる(図4の点線参照)。
出入口ヘッダ管26は、鉛直方向に延びるアルミニウム製もしくはアルミニウム合金製の筒状部材であり、内部が上方部分と下方部分とに分割されている。具体的には、出入口ヘッダ管26の内部は、水平方向に広がったバッフルによって上下に仕切られている。
連結ヘッダ23は、室外熱交換器20のうち、熱交換部21の出入口ヘッダ管26や折返しヘッダ24が設けられている側(図3でいう機械室側)の端部とは反対側(図3でいう送風機室側)に設けられている。
折返しヘッダ24は、熱交換部21の連結ヘッダ23が設けられている側の端部とは反対側の端部であって、出入口ヘッダ管26よりも風下側において上下方向に延びるように設けられている。この折返しヘッダ24は、熱交換部21のうちの風下側熱交換部20bの連結ヘッダ23側とは反対側の端部に接続されている。折返しヘッダ24もアルミニウム製もしくはアルミニウム合金製の部材である。
図6に点線で概略配置を示すように、連絡部25の連絡配管25a〜25jは、複数の結束部9によって結束された状態でロウ付け固定されている。
連絡部25の各連絡配管25a〜25jの外側表面には、クラッド材が被覆された皮膜が形成されている。当該クラッド材は、連絡配管25a〜25jの外表面を孔食から保護することが保護することが可能な犠牲材であり、特に限定されないが、例えば、亜鉛を僅かに(例えば1%以下)含むアルミニウム7072等の合金を用いることができる。また、このクラッド材の融点は、連絡部25の各連絡配管25a〜25jのクラッド材以外の部分の融点よりも低く、ロウ材としても機能することができる。
結束部9を構成するバンド部材40と挟持具50は、結束させる対象である連絡配管25a〜25jと同じ素材であるアルミニウムまたはアルミニウム合金製である。このため、結束固定された状態で結束部9と連絡部25との間で電気的腐食が生じにくい。
(8−1)変形例A
上記実施形態では、バンド部材40と挟持具50とを備えた結束部9が複数の連絡配管25a〜25jを結束させつつロウ付け固定する場合を例に挙げて説明した。
上記実施形態では、結束部9がバンド部材40および挟持具50に別れて構成されている場合を例に挙げて説明した。
上記実施形態では、複数の連絡配管25a〜25jの表面や挟持具50の表面には、ロウ材として機能するクラッド材が設けられている場合を例に挙げて説明した。
9 結束部
20 室外熱交換器(熱交換器)
22 分流器(複数の部材)
24 折返しヘッダ(複数の部材、ヘッダ)
25 連絡部
25a〜25j 連絡配管(複数の部材)
26 出入口ヘッダ(複数の部材、ヘッダ)
40 バンド部材
41 本体部
42 係止孔(係止部)
43 バンド部
50 挟持具
Claims (4)
- アルミニウムまたはアルミニウム合金製であり、内部が複数の空間に仕切られたヘッダ(24)と、前記複数の空間同士を接続する連絡配管を複数(25a〜25j)と、を含む複数の部材(25a〜25j、24、22)と、
係止部(42)を含む本体部(41)と、前記本体部から伸びており前記本体部側とは反対側の部分が前記係止部において係止されるバンド部(43)と、を有しており、アルミニウムまたはアルミニウム合金製である結束部(9)と、
を備え、
前記結束部は、前記複数の連絡配管を結束しており、
前記結束部と前記複数の連絡配管とは、ロウ材が介在した状態で固定されている、
熱交換器。 - アルミニウムまたはアルミニウム合金製であり、分流器(22)とヘッダ(26)とを含む複数の部材(25a〜25j、24、22)と、
係止部(42)を含む本体部(41)と、前記本体部から伸びており前記本体部側とは反対側の部分が前記係止部において係止されるバンド部(43)と、を有しており、アルミニウムまたはアルミニウム合金製である結束部(9)と、
を備え、
前記結束部は、前記分流器および前記ヘッダを結束しており、
前記結束部と、前記分流器および前記ヘッダと、は、ロウ材が介在した状態で固定されている、
熱交換器。 - アルミニウムまたはアルミニウム合金製である複数の部材(25a〜25j、24、22)と、
係止部(42)を含む本体部(41)と、前記本体部から伸びており前記本体部側とは反対側の部分が前記係止部において係止されるバンド部(43)と、を有しており、アルミニウムまたはアルミニウム合金製である結束部(9)と、
を備え、
前記複数の部材は、前記結束部によって結束される部分が同じ方向に向けて伸びており、
前記結束部は、前記方向における幅が前記バンド部よりも大きい部分を有しており、前記複数の部材を挟むことが可能であり、アルミニウムまたはアルミニウム合金製である挟持具(50)をさらに有しており、
前記挟持具と前記本体部と前記バンド部は、前記複数の部材を結束しており、
前記挟持具と前記本体部と前記バンド部と、前記複数の部材と、は、ロウ材が介在した状態で固定されている、
熱交換器。 - 前記複数の部材と前記結束部とが少なくとも一部で接触している、
請求項1から3のいずれか1項に記載の熱交換器。
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PCT/JP2016/050247 WO2016117357A1 (ja) | 2015-01-19 | 2016-01-06 | 熱交換器およびその製造方法 |
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